[2] In addition to writing and co-producing the title song to That Thing You Do!, Schlesinger composed "Master of the Seas" for Ice Age: Continental Drift, performed by Jennifer Lopez, Peter Dinklage and others.

He wrote and produced three songs for Music and Lyrics,[10][11] and his music has also been featured in films such as Shallow Hal (which he scored with Ivy);[12] Robots;[13] There's Something About Mary;[12] Me, Myself & Irene;[14] Josie and the Pussycats;[11] Scary Movie;[15] Art School Confidential;[16] Fever Pitch;[17] The Manchurian Candidate;[18] Because of Winn-Dixie;[19] Orange County;[20] Two Weeks Notice;[14] and others.

Schlesinger and The Daily Show executive producer David Javerbaum co-wrote the songs for the musical theater adaptation of the John Waters film Cry-Baby.

[23] The musical was set for previews to begin on May 9, 2020, at the Atlantic's Linda Gross Theater; opening night was scheduled for Wednesday, June 10, 2020.

Puppy (Nickelodeon), Good Luck Charlie (Disney Channel), The Fresh Beat Band (Nickelodeon), Kathy (Bravo), Crank Yankers, Wedding Band (TBS), the Billboard Music Awards, Bubble Guppies (Nick Jr.), The Howard Stern Show, Sesame Street, Comedy Central's Night of Too Many Stars, Robert Smigel's cartoons for Saturday Night Live, The Disney Parks Christmas Day Parade with Neil Patrick Harris, the Comedy Awards (Comedy Central), American Dreams, Stephen King's Kingdom Hospital, The In-Laws, The Man Show, Supernoobs, Too Late with Adam Carolla, The Dana Carvey Show, John Leguizamo's House Of Buggin', My Kind of Town, Johnny Test, and others.

His songs have been licensed for use on numerous television series, including Scrubs, The Hills, Gossip Girl, Melrose Place, Felicity, Roswell, and others.

Fountains of Wayne was nominated for two Grammy Awards in 2003 for Best New Artist and Best Pop Performance by a Duo or Group with Vocal for "Stacy's Mom".

Schlesinger received a 2013 Daytime Emmy nomination for Outstanding Original Song for his "Elmo the Musical" theme for Sesame Street.

He received a 2017 Emmy nomination for Outstanding Original Music and Lyrics for "We Tapped That Ass" (co-written with Rachel Bloom and Jack Dolgen) from the CW series Crazy Ex-Girlfriend.

The 31-track album features covers of songs Schlesinger wrote or performed by artists such as Kay Hanley, Ben Lee, and Prince Daddy & The Hyena.

as well as Colin Hanks and crew reunited on a Zoom/YouTube event during that summer, where they reminisced about Schlesinger and the movie, as well as an auction of a Mondo test pressing for a soundtracks first issue on vinyl, which was released in October 2023.

[citation needed] An Indianapolis-based Fountains of Wayne tribute band, Utopia Parkway, performed two sets in 2021 in honor of Schlesinger.